a.k.a. Jewel Puzzler, Christoph's Magic Jewel, Christoph Bandelow's Jewel
Left made in Taiwan circa 1990, right made by Mefferts 2010.
(left: plastic, 2 inches between square faces, opposite colors are
magenta / yellow, green / white, orange / red, blue / gold;
right: 2.6" between square faces, all squares are brown, opposite colors are
yellow / light blue, red / orange, purple / pink, green / blue)
but without tips
(it has the same dimensions and appears to have the same origin of manufacture).
A puzzle like this but with less interesting graphics was sold as
Christoph's Magic Jewel,
and more recently by
Christoph Bandelow's Jewel.
Here views of the other 7 hexagonal faces: